Changes
/* FDC Track Format */
* The ID Address Mark (IDAM) marks the beginning of a sector's header.
* The Data Address Mark (DATA AM) marks the beginning of the actual data in a sector.
* There are 2 types of sectors based on their DATA AM valuesvalue. Data sectors are marked by an FB byte, while deleted sectors are marked by an F8 byte.
* Gaps are necessary to accommodate variations in rotation speed between different drives and avoid overlapping.
